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Finding the Fourth Proportional to 648.63, 973.00 and 323.72

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Solution

The fourth proportional to 648.63, 973.00 and 323.72 is: 485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.63 : 973.00 = 323.72 : x
  2. Step 2: Convert to fraction form
    648.63/973.00 = 323.72/x
  3. Step 3: Cross multiply
    648.63x = 973.00 × 323.72
  4. Step 4: Simplify right side
    648.63x = 314,976.93
  5. Step 5: Solve for x
    x = 314,976.93/648.63
  6. Step 6: Final answer
    x = 485.60

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.